Masellis Drilling Inc.
Recorded as the driller on 6,093 water wells across 10 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Stanislaus County. Well-log records span 1989–2026.
Counties served
Wells drilled by Masellis Drilling Inc., by county, across the full record.
| County | Wells drilled |
|---|---|
| Stanislaus County | 2,783 |
| San Joaquin County | 2,656 |
| Merced County | 618 |
| Sacramento County | 14 |
| Mariposa County | 11 |
| Calaveras County | 6 |
| Alameda County | 2 |
| Fresno County | 1 |
| Madera County | 1 |
| Contra Costa County | 1 |
Well characteristics
Across the wells Masellis Drilling Inc. has drilled, the median depth is 244 ft (middle half 193 ft–300 ft), median tested yield 102 gpm, and median static water level 73 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Masellis Drilling Inc., straight from the public DWR record:
"Records span 1989–2026" refers to the earliest and latest well logs attributed to this company in the DWR database — the state digitized older paper logs, so the first date is the oldest record on file, not necessarily the company's founding year.
Free. Goes to licensed drillers working Stanislaus County, including Masellis Drilling Inc..
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